High-voltage direct current transmission path

Abstract

A high-voltage direction current transmission path includes at least one or two or more lines. Along at least one of the lines, at least one tapping/feeding point is provided at which at least one group of electrolytic cell stacks can be connected directly by a thyristor switching arrangement. The thyristor switching arrangement of each group of electrolytic cell stacks includes a power thyristor, a bypass thyristor and an emergency shutoff element switched in parallel to the power thyristor in a bypass line.

The invention claimed is: 
     
       1. A high-voltage direct current transmission path, comprising:
 at least one line including at least one tapping/feeding point arranged along the at least one line; and 
 at least one group of electrolytic cell stacks; and 
 a thyristor switching arrangement configured to directly connect the at least one group of electrolytic cell stacks at the at least one tapping/feeding point, said thyristor switching arrangement comprising a power thyristor, a bypass thyristor, and an emergency shutoff element, said emergency shutoff element switched in parallel to the power thyristor in a bypass line. 
 
     
     
       2. The high-voltage direct current transmission path of  claim 1 , further comprising a first bypass arranged in parallel to the at least one line, said electrolytic cell stacks of the at least one group being switched in series in the first bypass. 
     
     
       3. The high-voltage direct current transmission path of  claim 1 , further comprising at least one group of fuel cell stacks, said thyristor switching arrangement configured to directly connect the at least one group of fuel cell stacks at the at least one tapping/feeding point. 
     
     
       4. The high-voltage direct current transmission path of  claim 3 , further comprising a second bypass arranged in parallel to the at least one line, and a plurality of bypass diodes disposed in the second bypass, said fuel cell stacks of the at least one group being switched via the bypass diodes in one-to-one correspondence. 
     
     
       5. The high-voltage direct current transmission path of  claim 3 , further comprising a plurality of said group of fuel cell stacks, and a plurality of group switching elements provided for the groups of fuel cell stacks in one-to-one correspondence to allow connection of the groups of fuel cell stacks in stages. 
     
     
       6. The high-voltage direct current transmission path of  claim 3 , further comprising at least one individual switching element for each of the fuel cell stacks of the at least one group of fuel cell stacks to allow connection of the fuel cell stacks of the at least one group of fuel cell stacks in stages. 
     
     
       7. The high-voltage direct current transmission path of  claim 3 , further comprising a plurality of said group of fuel cell stacks, a central hydrogen store, and a central oxygen store, said plurality of groups of fuel cell stacks being coupleable fluidically to the central hydrogen store and the central oxygen store. 
     
     
       8. The high-voltage direct current transmission path of  claim 3 , further comprising a plurality of said group of fuel cell stacks, and a central cooling system, said cooling system being operably connected to the plurality of groups of fuel cell stacks. 
     
     
       9. The high-voltage direct current transmission path of  claim 1 , wherein the at least one group of electrolytic cell stacks comprises at least eight electrolytic cell stacks, said at least eight electrolytic cell stacks being switched in series. 
     
     
       10. The high-voltage direct current transmission path of  claim 1 , further comprising a plurality of said group of electrolytic cell stacks, and a plurality of group switching elements provided for the groups of electrolytic cell stacks in one-to-one correspondence to allow connection of the groups of electrolytic cell stacks in stages. 
     
     
       11. The high-voltage direct current transmission path of  claim 1 , further comprising at least one individual switching element for each of the electrolytic cell stacks of the at least one group of electrolytic cell stacks to allow connection of the electrolytic cell stacks of the at least one group of fuel cell stacks in stages. 
     
     
       12. The high-voltage direct current transmission path of  claim 1 , further comprising a control electronics provided for controlling the at least one tapping/feeding point. 
     
     
       13. The high-voltage direct current transmission path of  claim 1 , further comprising a plurality of said group of electrolytic cell stacks, a central hydrogen store, and a central oxygen store, said plurality of groups of electrolytic cell stacks being coupleable fluidically to the central hydrogen store and the central oxygen store. 
     
     
       14. The high-voltage direct current transmission path of  claim 1 , further comprising a plurality of said group of electrolytic cell stacks, and a central cooling system, said cooling system being operably connected to the plurality of groups of electrolytic cell stacks.